Patents Assigned to Carle Instruments, Inc.
  • High pressure valve for chromatography
    Patent number: 4222412
    Abstract: A valve in which a cold flowable, non-absorbing sealing member, such as tetrafluoroethylene resin, is confined within complementary surfaces of an outer hollow body and an inner, rotatable element, and substantial pressure is imposed on the member to compress and cold flow its material into sealing engagement with the complementary surfaces. At least one passage is formed in the inner element, and ports are formed in the surrounding member and body so as to come into selective alinement with the passage.
    Type: Grant
    Filed: January 15, 1979
    Date of Patent: September 16, 1980
    Assignee: Carle Instruments, Inc.
    Inventor: Don W. Carle
  • Hydrogen transfer system for gas chromatograph
    Patent number: 4067227
    Abstract: A gas chromatograph and chromatographic process for determining hydrogen in a sample in which the hydrogen is passed from one carrier through a selectively permeable barrier into a carrier gas having low thermal conductivity.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: January 10, 1978
    Assignee: Carle Instruments, Inc.
    Inventors: Theron Johns, Edward A. Berry